Like many people, I cannot get Atmos audio out of my Apple TV4K via my 2020 LG NANO91ANA via pass through. I get the “Atmos” sticker next to movies in many Apple TV apps, but when I start to play them, no audio comes through. Other times (depending on the TV audio settings), I’ll get “5.1”. Many people are saying this is an LPCM limitation on the Sonos Arc and the Apple TV4K. The TV is brand new, 2020 model, with eARC, so it’s beyond me why there are any hardware compatibility issues.
All devices are running off latest updates (6/29/20). The TV has eARC enabled, Digital Sound Out = Pass Through, Audio Input set to Bitstream
Should I return the TV and get something else? Or will this eventually get fixed by Apple/Sonos/LG via software updates? I also shelled $3000 for Atmos audio via the new Arc soundbar, so If I’m not getting it, I don’t want to keep all this hardware.
Atmos DOES work when using the LG apps (Netflix, AppleTV (app), Prime), but the interface is inferior to using a hardware AppleTV. This all boils down to pass-through problems between the 3 devices (LG tv, AppleTV, and Sonos Arc)